Indoor escape device

ABSTRACT

The present invention is directed to an indoor escape device which allows the evacuees to pass through a manhole in a slab by which two stories are separated thereby escaping swiftly to a safety story or zone one after another without going from the indoors to the outdoors.

United States Patent 1191 Naka Oct. 30, 1973 [54] INDOOR ESCAPE DEVICEFOREIGN PATENTS OR APPLICATIONS lflvemofl Himmits" Naka 39, 34,7292/1935 Netherlands 182 81 Shin Yashio-cho, Minami 198,072 9/1938Switzerland 182 81 Saitama-gun, Saitama-ken, Japan 203,697 5/1959Austria 182/81 647,747 12/1950 Great Britain. 182/81 [221 Wed: 19711,273,785 7 1968 Gennany 182/81 [21] A l. No.: 124,034

Primary ExaminerReinaldo P. Machado 52 us. c1. 182/77 pmack 511 A62b 120 [58] Field of Search 182/81, 77, 78, 79, [57] ABSTRACT 182/80; 52/19!138/145 The present invention is directed to an indoor escape devicewhich allows the evacuees to pass through a [56] References C'tedmanhole in a slab by which two stories are separated UNITED STATESPATENTS thereby escaping swiftly to a safety story or zone one 2,833,0015/1958 Montefalco 52 403 after no h r without going from the indoors tothe 3,012,375 12 1961 Wasserman.... 52 19 outdoors. 3,258,032 6/1966Whittier 138 146 876,354 1 1908 Houghton 182/81 4 Chums, 38 DrawmgFlgures PATENIEDBBI3OI975 3.768.593 snzn 010F213 HIRDMIT 5U NAKRINVENTOR dumb/101i, ATTORNEY rmmmnmso ms 3.768593 saw 020? 23 HI ROMITSU NAKR INVENTOR fi mndmdthiimdw Qnwdb ATTORNEY Pmmmnmsoms 7 3,7 8,593SHEET 030E 23 'I'IIIIIIII IIIIIIIIA HIRBMITSU 'NRKR INVENTOR b ruuluwtlibnd. w @nuulu ATTORNEY PATENTEDOCT 30 ms SHEET URUF 23 HI RoMITsu NAKAINVENTOR MAI/HIM.-

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1. An escape system for positioning between the floor of one story of abuilding and the ceiling of a story below the firstmentioned story, saidsystem comprising: an escape means including a first frame means adaptedto be positioned in a hole in the floor of the one story and a secondframe means adapted to be positioned at the other end of said hole inthe ceiling of the story below said firstmentioned story, an adjustablebellows type shell means extending between said first and said secondframe means forming an escape passage for an evacuee, a cover memberpositioned over at least one of said frames for closing the hole whenthe system is not in use, and an escape unit secured adjacent saidescape means and adapted to extend through at least part of said shellmeans when said cover member is open for use by the evacuee in passingthrough said escape means.
 2. An escape system as claimed in claim 1 inwhich said shell means has a coating of a heat resistive material on theexterior thereof.
 3. An escape system as claimed in claim 1 in whichsaid shell means has a coating of an elastic buffer material on theinterior surface thereof.
 4. An escape system for use in a multi-storybuilding comprising a plurality of escape means adapted to be positionedbetween the floor and ceiling of each of at least the majority of saidstories, each of said escape means including a first frame means adaptedto be positioned in a hole in the floor of one story and a second framemeans adapted to be positioned at the other end of said hole in theceiling of the story below said first-mentioned story, an adjustablebellows type shell means extending between said first and said secondframe means forming an escape passage for an evacuee, a cover memberpositioned over at least one of said frames for closing the hole whenthe system is not in use, and an escape unit secured adjacent saidescape means and adapted to extend through at least part of said shellmeans when said cover member is open for use by the evacuee in passingthrough said escape means.